Category
page 1Prehistoric bryozoans
Trepostomatida
thumb|right|Trepostome bryozoan with bioerosion; [[Bellevue Formation, Upper Ordovician (Katian), northern Kentucky.]]
Cystoporida
Cystoporida, also known as Cystoporata or cystoporates, are an extinct order of Paleozoic bryozoans in the class Stenolaemata. Their fossils are found from Ordovician to Triassic strata.
Fenestrida
Fenestrida is an extinct order of bryozoans in the class Stenolaemata.